I have quite a disdain for coins in my pockets or wallet, particularly Australian coins that are at times unwieldy in size (I do question what they were hoping to achieve with the 50 cent piece). As a result I religiously dump any shrapnel at the end of the day into a rather sizable collection box. However with this mindset the stash of coins can accumulate quite readily, particularly after passing the hat around for donations, fundraisers or the odd going away party.
Typically I will exchange coins two or three times a year with the coin collection ranging anywhere between 200 to 300 dollars each time. This gives me some credence when I claim to have considerable familiarity with the coin exchange process.